Biomedical Research

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Results: The mean CDE value of grade II nucleus in the observation group was 6.41 ± 3.12, and the mean CDE value of grade III nucleus was 17.48 ± 4.72, which had significant differences from those of the control group (P<0.001). In the observation group, accumulative energy release of grade II nucleus reduced by 28.43% and that of grade III nucleus reduced by 22.61%. Corneal endothelial cell counts of patients in the control group 3 months after the operation were within 2,091.3 ± 492.81 (ea/mm2), which were significantly lower than those (2,317.8 ± 512.77 (ea/mm2)) of the observation group (P<0.05). In the aspect of operation effect, vision examination results at different time points before and after the operation did not have statistical significance (P>0.05), and combined femtosecond laser and phacoemulsification had the same curative effect on the restoration of visual functions of senile cataract as traditional phacoemulsification did.